Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 7028 ACD/HCP4AL

7028 ACD/HCP4AL

Dimensions

d		140	mm
D		210	mm
B		33	mm
d₁		161.6	mm
d₂		161.6	mm
D₁		188.4	mm
b		3.1	mm
C₁		17.9	mm
C₂		6.6	mm
C₃		5.6	mm
r_1,2	min.	2	mm
r_3,4	min.	1	mm
a		57.5	mm

Abutment dimensions

d_a	min.	149	mm
d_b	min.	149	mm
D_a	max.	201	mm
D_b	max.	205	mm
r_a	max.	2	mm
r_b	max.	1	mm
d_n		166.3	mm

Calculation data

Basic dynamic load rating	C	146	kN
Basic static load rating	C₀	156	kN
Fatigue load limit	P_u	5.1	kN
Attainable speed for grease lubrication		7000	r/min
Attainable speed for oil-air lubrication		11000	r/min
Ball diameter	D_w	22.225	mm
Number of balls	z	22
Reference grease quantity	G_ref	45	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	900	N
Static axial stiffness, preload class A		404	N/µm
Preload class B	G_B	1800	N
Static axial stiffness, preload class B		530	N/µm
Preload class C	G_C	3600	N
Static axial stiffness, preload class C		702	N/µm
Preload class D	G_D	7200	N
Static axial stiffness, preload class D		950	N/µm
Calculation factors
Calculation factor	f	1.16
Calculation factor	f₁	0.99
Calculation factor	f_2A	1
Calculation factor	f_2B	1.02
Calculation factor	f_2C	1.05
Calculation factor	f_2D	1.08
Calculation factor	f_HC	1.02
Calculation factor	e	0.68
Calculation factor (single, tandem)	Y₂	0.87
Calculation factor (single, tandem)	Y₀	0.38
Calculation factor (single, tandem)	X₂	0.41
Calculation factor (back-to-back, face-to-face)	Y₁	0.92
Calculation factor (back-to-back, face-to-face)	Y₂	1.41
Calculation factor (back-to-back, face-to-face)	Y₀	0.76
Calculation factor (back-to-back, face-to-face)	X₂	0.67

Mass

Mass bearing

2.83

Model Number: 7028 ACD/HCP4AL
Inner Diameter：140mm Outer Diameter：210mm Width：33mm
Reference speed:- Limiting speed:-
Type：Bearings, units and housings Super-precision bearings Angular contact ball bearings Angular contact ball bearings, super-precision
Details： Angular contact ball bearings, super-precision
Update date：2021-06-06
Application:Surveying Surveying Instruments,instrumentation instrument,floor industry,cleaning agent,Forging machine,ventilation equipment,reducer,respirator,medical equipment,Oral Equipment,Forklift industry
Similar models:7028 ACD/P4A 7028 CD/HCP4AL 7028 ACD/P4AH1 S7028 ACD/HCP4A 7028 BGM 7028 CD/P4A 7028 CD/HCP4AH1 7028 CD/P4AH1 7028 CD/HCP4A 7028 ACD/HCP4AL
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Model No.	Inner Diameter	Outer Diameter	Width	Type
12301	31.0134	45.9994	8.001	Seals
480x520x20 HDS1 R	480	520	20	Seals
49966	127	158.75	12.7	Seals
55x70x8 HMSA10 RG	55	70	8	Seals
71924 CB/P4AL	120	165	22	Bearings, units and housings
99196	50	56.9976	16.9672	Seals
FYWR 3/4 YTHR	19.05	-	-	Bearings, units and housings
GEC 460 TXA-2RS	460	620	218	Bearings, units and housings
PFD 1. TR	25.4	-	-	Bearings, units and housings
S71919 CD/HCP4A	95	130	18	Bearings, units and housings
SAF 22213 T	65	-	-	Bearings, units and housings
SD 20x26x4	20	26	4	Seals

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Hot number： 27251 3100562 31310 40x55x10 CRS1 R 51252 6213-2RS1 627-2RSH 71919 ACD/P4A BT4B 328974 G/HA1VA901 N 315 ECM NCF 2892 V/HB1 OKCX 830 SAF 22338 T SNLN 3038 SYNT 70 LTS